Anti-displacement metal spiral wound gasket

Abstract

The utility model discloses an anti-displacement metal spiral wound gasket, which relates to the technical field of metal spiral wound gaskets, and comprises a gasket body, a mounting disc, a snap ring and a ring groove, and the snap ring moves outside the ring groove; the gasket body comprises an inner ring, a winding ring and an outer ring, wherein the winding ring and the outer ring fixedly sleeve the outer side of the inner ring in sequence. A gap is formed between the clamping ring and the ring groove, the gap is communicated with the outside of the ring groove, and a seam filling layer is fixed in the gap in an attached mode; when the mounting disc is attached to and presses the winding ring, the clamping ring is attached to and presses the seam filling layer and applies pressure to the seam filling layer to deform; the sealing device has the advantages that the installation disc exerts pressure on the winding ring so that the winding ring can generate contraction deformation to enhance the sealing performance, in the process, the clamping ring continuously moves towards the gap, makes contact with the seam filling layer and exerts pressure on the seam filling layer, the supporting performance is improved through deformation of the seam filling layer, and the sealing performance is improved. The inhibition force of micro displacement generated in the using process of the metal spiral-wound gasket is improved, and abrasion to the metal spiral-wound gasket is relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal winding gasket technical field more specifically relates to a kind of anti-displacement metal winding gasket. BACKGROUND

[0002] Metal winding gasket is a kind of commonly used sealing material, mainly used in the flange connection of pipeline, valve, pump and other equipment, to ensure the sealing of these connecting parts, the characteristics of this gasket can withstand high temperature and pressure, and have good corrosion resistance;

[0003] Metal winding gasket is usually made of V-shaped or W-shaped metal band (such as stainless steel band) and non-metallic filler material (such as graphite, polytetrafluoroethylene, etc.) alternately wound, forming a compact structure, and then fixed by inner ring and outer ring, the structure is shown as "inner ring; outer ring; winding part" in "application number: CN202322958800.1, a metal winding gasket to prevent displacement".

[0004] The existing metal winding gasket is shown as "application number: CN202022516373.8, a metal winding gasket", which is placed in the recess of the flange body by setting the protrusion to prevent the metal winding gasket from shifting during use, but in order to press the "metal band; non-metallic band" on the flange, the recess of the flange body generally needs to be reserved space, and the support between the metal winding gasket and the flange body at this position is poor, which has the disadvantage that the metal winding gasket is easy to displace slightly during use and accelerate the wear of the metal winding gasket. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the above technical problem, the utility model provides a kind of anti-displacement metal winding gasket.

[0006] The utility model discloses a kind of anti-displacement metal winding gaskets to achieve the above purposes, and specifically adopt the following technical solutions:

[0007] The utility model provides a kind of anti-displacement metal winding gasket, including gasket body, the installation disc of the two sides symmetry of gasket body, the clasp ring of the two pieces of end symmetry of gasket body, and the ring groove of being located on installation disc, the clasp ring is moved in the ring groove outside;

[0008] The gasket body includes inner ring, winding ring and outer ring fixedly sleeved in sequence outside the inner ring, and the outer ring is fixed with the clasp ring outside;

[0009] The gap is formed between the clasp ring in the ring groove, the gap is communicated outside the ring groove, and the caulking layer is fixedly attached in the gap;

[0010] When installation disc is attached and compressed winding ring, clasp ring is attached and compressed caulking layer and the pressure deformation of caulking layer.

[0011] As a preferred technical scheme of the utility model, the annular groove is expanded from inside to outside.

[0012] As a preferred technical scheme of the utility model, the material of the caulking layer is aluminum.

[0013] As a preferred technical scheme of the utility model, the utility model further comprises a flow groove arranged on the snap ring for the caulking layer to be pressed and deformed.

[0014] As a preferred technical scheme of the utility model, the utility model further comprises a groove arranged around the outer ring.

[0015] The utility model has the advantages of the following:

[0016] The installation disc is used for applying pressure to the winding ring to make the winding ring shrink and deform to enhance the sealing performance; in this process, the snap ring continuously displaces into the gap and contacts the caulking layer and applies pressure to the caulking layer, and the caulking layer deforms to improve the supporting performance, and the metal winding gasket is inhibited from generating slight displacement in the use process, and the wear of the metal winding gasket is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a gasket body structure schematic diagram of the utility model.

[0019] The drawings are as follows: gasket body-1, installation disc-2, snap ring-3, annular groove-4, gap-5, caulking layer-6, flow groove-7, groove-8, inner ring-11, winding ring-12, outer ring-13. DETAILED DESCRIPTION Embodiment 1:

[0020] As shown in the drawings, Figures 1-2 The embodiment provides a displacement-proof metal winding gasket, which comprises a gasket body 1 and installation discs 2 symmetrically arranged on both sides of the gasket body 1.

[0021] The installation discs 2 are flanges; snap rings 3 symmetrically arranged on both ends of the gasket body 1 and annular grooves 4 arranged on the installation discs 2; the snap rings 3 are movably arranged in the annular grooves 4; the snap rings 3 are symmetrically and fixedly arranged on both ends of the gasket body 1; the installation discs 2 are arranged towards the gasket body 1 and pass through the annular grooves 4 and the snap rings 3 to clamp the gasket body 1; and the gasket body 1 is clamped by the two groups of installation discs 2.

[0022] The structure of the gasket body 1 is as follows: the gasket body 1 comprises an inner ring 11, a winding ring 12 fixed outside the inner ring 11 in sequence, and an outer ring 13 fixed outside the winding ring 12 in sequence, and the outer ring 13 is fixed with a clamping ring 3, and the left and right sides of the outer ring 13 are respectively fixed with a group of clamping rings 3;

[0023] The clamping ring 3 forms a gap 5 between the ring grooves 4, the gap 5 is communicated with the outside of the ring groove 4, and the gap 5 is fixed with a caulking layer 6, when the gasket body 1 is clamped by the two groups of mounting discs 2, the clamping ring 3 is placed in the ring groove 4, but the clamping ring 3 does not completely fit the ring groove 4, and there is a gap 5 therebetween, and the caulking layer 6 is arranged at the position of the gap 5;

[0024] When the mounting disc 2 is pressed and clamped with the winding ring 12, the clamping ring 3 is pressed and clamped with the caulking layer 6 and deforms the caulking layer 6, when the gasket body 1 is installed and used, the mounting disc 2 applies pressure to the winding ring 12 to cause the winding ring 12 to shrink and deform to enhance the sealing performance, in this process, the clamping ring 3 continuously displaces into the gap 5 and contacts the caulking layer 6 and applies pressure to the caulking layer 6, the caulking layer 6 deforms to improve the support performance, and the metal winding gasket is inhibited from generating a small amount of displacement during use, thereby reducing the wear of the metal winding gasket.

[0025] The ring groove 4 is expanded from the inside to the outside, which facilitates the clamping ring 3 to be placed in the ring groove 4.

[0026] The caulking layer 6 is made of aluminum, which has good ductility and is not easy to corrode. Example 2:

[0027] As shown in Figures 1-2 The difference between the example 1 and the example 2 is that a flow groove 7 is arranged on the clamping ring 3 to place the caulking layer 6, when the caulking layer 6 is deformed by pressure, the flow groove 7 can be used as a space for deformation, to improve the integrity between the caulking layer 6 and the clamping ring 3, and to enhance the overall stability. Example 3:

[0028] As shown in Figure 1 The difference between the example 2 and the example 3 is that a groove 8 is arranged around the outer ring 13, the groove 8 is arranged on the periphery of the outer ring 13, which can be used to apply a pry when disassembling, to assist the operation.

[0029] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, obviously the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0030] In addition, it should be understood that, although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A displacement-proof metal winding gasket, comprising a gasket body (1), mounting discs (2) symmetrically arranged on both sides of the gasket body (1), snap rings (3) symmetrically arranged on both ends of the gasket body (1), and a ring groove (4) arranged on the mounting disc (2), the snap ring (3) being movably arranged in the ring groove (4); the gasket body (1) comprises an inner ring (11), a winding ring (12) and an outer ring (13) which are sequentially and fixedly arranged outside the inner ring (11), and the outer ring (13) is fixedly connected with the snap ring (3); a gap (5) is formed between the snap ring (3) and the ring groove (4), the gap (5) is communicated with the outside of the ring groove (4), and a caulking layer (6) is fixedly arranged in the gap (5); when the mounting disc (2) is pressed against the winding ring (12), the snap ring (3) is pressed against the caulking layer (6) and the caulking layer (6) is deformed under pressure. The ring groove (4) is in a shape of expanding from inside to outside. characterized in that The caulking layer (6) is made of aluminum. A flow groove (7) is arranged on the snap ring (3) for placing the caulking layer (6) which is deformed under pressure.

2. A shift resistant metal wrap gasket as defined in claim 1 wherein, A groove (8) is arranged around the outer ring (13).

3. A shift resistant metal wrap gasket as defined in claim 1 wherein, ​ 4. A shift resistant metal wrap gasket as defined in claim 1 wherein, ​ 5. A shift resistant metal wrap gasket as defined in claim 1 wherein, ​

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